Elmore on fri 7 feb 97
I have an old *cone 6* Cress kiln that I have just fired successfully to
cone 9, but I have been warned that I sould not do so on a regular basis as
"the switches" will not last.
Has anyone else had experience with *pushing* kilns this way?
Janet
Lili Krakowski on mon 10 feb 97
When I was in school --a long time ago--I was told something very
sensible: that the "ideal" is to fire kilns 2 cones below their official
limit. That IMPLIES (it does not state) that a kiln is designed with an
over-firing tolerance; which would suggest that a c.6 kiln will go to c.8
or 9. If the Cress people are still in business you might want to find
out what brick they use; for all you know their brick will take the
temp. You might be straining your elements --because they are being
forced to work harder...But truth to tell, I also was told--and this more
recently--that one figures 100 firings per set of elements. So if your
brick will take it (ask Cress) make a piggy bank, plonk in $15 for each
firing and that should pay for new elements when these go. As to switches?
It the wires connecting them are proper and tight and not frayed (which
will kill them switches even if brand new) I have never found a life
expectancy for those things; nor have I heard that a c.6 kiln would have
different switc hes from a c.9 one (c.06 just might.) Good luck
Lili Krakowski lkkrakow@edisto.cofc.edu
On Fri, 7 Feb 1997, Elmore wrote:
> ----------------------------Original message----------------------------
> I have an old *cone 6* Cress kiln that I have just fired successfully to
> cone 9, but I have been warned that I sould not do so on a regular basis as
> "the switches" will not last.
>
> Has anyone else had experience with *pushing* kilns this way?
>
> Janet
>
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